Automatic slide-valve lubricator.



APPLIOATION FILED J'UNAEZO, 1906.

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UNITED sTATEs PATENT oEEroE.

WILLIAM L. NEWBAKER, OF WILKINSBURG, PENNSYLVANIA, ASSIGN OR OF ONE-HALF TO HARRY ERIOHSON, OF WILKINSBURG, PENNSYLVANIA.

AUTOMATIC SLIDE-VALVE L-UBRICATO.

Specicaton of'Letters Patent, application med June 20,1906. serai No. 322,591.

Patented May 14, 1907.

gheny and State of Pennsylvania, have invented certain new and useful Improvements in Automatic Slide-Valve Lubricators, of which the following is a specification, reference being had therein to the accompanying drawing. y

This invention relates to improved lubricators for steam chest slide valves, being designed primarily for locomotive use and the object is to provide a simple and e'Hicient device ior passing oil in proper quantities into the steam chest, the action being positive and without regard to the presence or absence of steam pressure within the chest.

In the accompanying drawing, Figure 1. is a longitudinal sectional view of a steam chest and slide valve with the improvement applied thereto. Fig. 2 is a vertical sectional view of the lubricator head together with the oil n delivering slide. Fig. 3 is a cross-sectional view on line 3 3 of Fig. 2. Fig. 4 is a vertical sectional view taken on line 4-4 of Fig. 3'. Fig. 5 is a bottom plan view of the lubricating head with the cap and oil delivering slide removed, and Fig. 6 is a detail view of the cap.

Referring to the drawing, 2 designates the steam chest, and 3 the lid 4 the slide valvey 5 the valve seat; 6 the cylinder ports and 7 the exhaust port; 8 the pressure distributing plate depended from lid 3; and 9 the springsupported transverse balance strips carried by the valve and caused by springs 9 to exert constant upward pressure against plate 8. The parts thus ijar referred to may be of the usual or any approved construction and form no part of the present invention except as they may co-operate with and are essential to the operation of the particular mechanism to which the invention is addressed.

Threaded into neck 8 of plate 8 is a cylindrical head 10 which projects through plate 8 and has its lower end recessed or countersunk, as indicated at 10. The central longitudinal bore 11 of the head connects with tallow pipe 12 and forms the oil inlet passage, and paralleling this passage ateither `side is an exhaust port 13 which is open to the atmosphere at the outer or upper end o'f head 10.

Passage 11 and ports 13 terminate in a transverse slideway 14, head recess 10 intersecting this slideway. Movable through slideway 14 and beneath plate 8 is the striplike rod 15 having. an opening 15 adapted toA communicate with the chest interior and also register, with ports 13 and passage 11, as will be presently explained.

For holding the oil delivering rod 15 tightly to its seat in slideway 14, the flanged cap 16 isprovided which closely fits recess 10 and bears against said rod. Projecting from the inner Jface oi the cap are two tubular spring sockets' 17 within which coiled springs 18 are pressed by headedscrews 19 which extend therethrough and through the inner contracted ends of the sockets and into threaded apertures in head 10, the head being provided with recesses 17 to receive sockets 17 By this means an adjustable or variable tension isprovided for holding the oil delivering rod so pressed to its seat that no steam can pass around it and enter ports 13 or oil passage 11.

The device is so positioned that slide 15 extends iongitudinally of the path of travel of valve 4, and being between pressure strips 9, the latter serve as knockers or pushers Jfor reciprocatin the slide. The throw of slide 15 is prefera ly such that it is moved a distance somewhat greater than the diameter of head 10, so that in one extreme position of the slide, opening 15 is exposed to the steam chest at one side of head 10 and in its other extreme position is exposed at the opposite side of the head. Slide 15 in moving from one of said positions to the other moves opening 15 inward into slideway 14 and is of course iilled with live steam. But before the opening reaches oil passage 11 it l'irst registers with one or other of ports 13 through which the steam in the slide opening is exhausted, so that when said opening registers with passage 11 it receives a charge of oil and carries it into the passages within the steam chest before the slide reaches the limit of its travel. Returning, the live steam filling IOO opening15 is irst exhausted, then it` receives its charge of oil and the operation is repeated for each stroke of the slide so long as the valve is in motion.

The oil inlet passage and the exhaust ports vare thus completely sealed from the steam chest, yet they so cooperate 'with the oil deliverin(T slide, and particularly opening 15 tliereo as to provide for positively lubricating the slide valve under all conditions of steam pressure, it being impossible for the lubricator to be affected and thetlow of oil 2. The combination of a steam chest having an oil inlet passage and transverse slide- Way intersecting the passage, and a slide movable in the slide-Way and having an openi-ng adapted in one position to register with the oil passage and in another position open to the steam chest, and means for reciprocating the slide.

3. The combination of a steam chest having an oil inlet passage and a transverse slide- Way intersecting the passage, a slide movable in the slideway and having an opening adapted in one position to register with the oil passage and in another position open to the steam chest, means for exhausting Asteam from the slide opening before it registers with said oil passage, and means for reciprocating the slide.

4. The combination of a steam chest having an oil inlet passage and a transverse slide- Way intersecting the passage, a slide movable in the slidevvay having an opening adapted in one position to communicate With the steam chest and in another position to register With the oil inlet passage, means for exhausting steam from the slide opening before it registers With the oil passage, and a slide valve adapted to operate the slide.

5. The combination of a steam chest, a head extending thereinto through the chest top, the head having an oil inlet passage terminating in a transverse slideway, a slide movable in the slidew ay and having an opening Which in one position is open to the steam chest and in another position registers With the oil passage, and a slide valve having top projections for engaging opposite ends of the slide for reciprocating the saine.

6. The combination el a steam chest having an oil inlet passage terminating in a transverse slideway, exhaust ports lading from the slideway at either side of said passage, a slide movable in the slideway and having an opening adapted to register with the chest interior and said ports and oil passage, and means for reciprocating` the slide.

7. The combination of a steam chest, a head projecting tliereinto having an oil passage terminating in a transverse slideway, the head having exhaust ports leading l'roin the slideway at either side of the oil passage, a slide movable in the slideway and having an opening adapted to register with the chest interior and said ports and oil passage, a slide valve, and an operative connection hetween the valve and slide for recipromtting the latter.

S. The combination of a steam chest having an oil inlet passage terminating in a transverse slideway, a slide movable in the slide- Way and having an opening adapted to register with the chest interior and with said oil passage, means for exhausting steam lroni the slide opening belore it registers with the oil passage, means for holding theI slide pressed to its seat in the slideway, and means for reciprocating the slide.

9. The combination oll a st iam chest, a head projecting thereinto having an oil inlet passage and an exhaust port at either side ol" the inlet passage, a transverse sli dew ay intersectiiig said ports and passage, a slide movable in the slideway and having an opening adapted to communicate with the chest interior and register with said ports and passage, a tension device at the inner end ol" the head bearing against the slide, and means lor reciprocating the slide.

10. rlhe combination el a steam chest, a head projecting tliereiiito formed with a central oil inlet passage and with exhaust ports at either side of the passage, a transverse slideway in which said ports and passage terminate, the inner end ol the head heilig recessed to expose the bottoni of the slideway, a slide movable in the slideway and adapted to open into the chest and also register with said ports and passage, a cap fitting the recessed end of the head and hearing against the slide, means for yieldingly securing the cap, and slide reciprocating means.

1l. The combination of a steam chest, a head adapted to be secured within the steam chest and formed with an oil inlet passage and exhaust ports at opposite sides ol" the passage, a transverse slidewaylorined through the head and intersecting the ports and passage, a slide movable in the slideway and having` an opening adapted to communicate with the steam chest and with said ports and IOO ior,

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ets and uniting With the head thereby yieldoil passage, the lower end of the head being ingly holding the cap, and slide reciprocating recessed to expose the bottom of the slideway, l means. 1o a cap iitting the recess and bearing against In testimony whereof I ailix my signature the slide, spring sockets projecting from the in presence of two Witnesses. cap and entering recesses in the head, springs WILLIAM L. NEWBAKER. Within the sockets7 headed screws engaging Witnesses:

the springs and extending through the sock- J. M. NEsBiT,

MARGARET HUGHES. 

